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| Behavior Patterns | 3 |
| Motor Development | 3 |
| Behavior Development | 2 |
| Play | 2 |
| Adjustment (to Environment) | 1 |
| Age Differences | 1 |
| Attachment Behavior | 1 |
| Attention | 1 |
| Biological Influences | 1 |
| Biology | 1 |
| Child Development | 1 |
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| Child Development | 3 |
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| Journal Articles | 2 |
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Peer reviewedGadberry, Sharon – Child Development, 1974
Descriptors: Attention, Behavior Patterns, Motor Development, Play
Peer reviewedByers, John A. – Child Development, 1998
Maintains that the "getting into shape" hypothesis of explaining the inverted-U distribution of exercise play across age is likely incorrect. Argues that the biological study of human physical activity play, as recommended by Pellegrini and Smith (1998), will reveal whether physical activity play represents an example of…
Descriptors: Age Differences, Behavior Development, Behavior Patterns, Biological Influences
Peer reviewedCassidy, Jude – Child Development, 1986
Explores the relation between the infant's ability to negotiate the environment and the quality of the infant-mother attachment relationship. (HOD)
Descriptors: Adjustment (to Environment), Attachment Behavior, Behavior Development, Behavior Patterns
